iMac can't compatible with Kingston KVR RAM?

[jokul]

I bought a kingston kvr667d2so/2GR updating my iMac 24(white). I plugged in, leopard system showed it normally. But about ten minutes, the screen turned black, either leopard or boot camp. The system was still running. iMac kept blank when I reboot the system. Someone has the experience succeed update ram with kingston value ram? Please give me some suggest.::confused:

[IChing]

I'm not sure of the KVR ram on the white imac without researching it, but kingston usually makes a quality guaranteed product so I would contact the manufacturer or the seller.